FN Archimer Export Format
PT J
TI Population bottleneck and effective size in Bonamia ostreae-resistant populations of Ostrea edulis as inferred by microsatellite markers
BT 
AF LAUNEY, Sophie
   BARRE, Marc
   GERARD, Andre
   NACIRI, Yamama
AS 1:;2:;3:;4:;
FF 1:PDG-DRV-RA-GAP;2:;3:PDG-DRV-RA;4:;
C1 LGP, IFREMER, F-17390 La Tremblade, France.
C2 LGP, FRANCE
SI LA TREMBLADE RONCE
   NANTES
SE PDG-DRV-RA-GAP
   PDG-DRV-RA
IN WOS Ifremer jusqu'en 2018
IF 2.317
TC 49
UR https://archimer.ifremer.fr/doc/2001/publication-2703.pdf
LA English
DT Article
DE ;Inbreeding;Effective population size;Bonamia ostreae;Ostrea edulis;European flat oyster
AB Genetic variability at five microsatellite loci was analysed in three hatchery-propagated populations of the flat oyster, Ostrea edulis. These populations were part of a selection programme for resistance to the protozoan parasite Bonamia ostreae and were produced by mass spawns, without control of the genealogy. Evidence for population bottlenecks and inbreeding was sought. A reduction in the number of alleles, mainly due to the loss of rare alleles, was observed in all selected populations, relative to the natural population from which they were derived. Heterozygote excesses were observed in two populations, and were attributed to substructuring of the population into a small number of families. Pedigree reconstruction showed that these two populations were produced by at most two spawning events involving a limited number of parents. Most individuals within these populations are half or full-sib, as shown by relatedness coefficients. The occurrence of population bottlenecks was supported by estimates of effective number of breeders derived by three methods: temporal variance in allelic frequencies, heterozygote excess, and a new method based on reduction in the number of alleles. The estimates from the different methods were consistent. The evidence for bottleneck and small effective number of breeders are expected to lead to increasing inbreeding, and have important consequences for the future management of the three O. edulis selected populations.
PY 2001
PD DEC
SO Genetical Research
SN 0016-6723
PU Cambridge University Press
VL 78
IS 3
UT 000173888000007
BP 259
EP 270
DI 10.1017/S0016672301005353
ID 2703
ER

EF